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arXiv · 2507.15820

Factorization and Resummation for the Nearside Energy-Energy Correlators

Yuxun Guo·Feng Yuan·Wenbin Zhao
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Abstract

By utilizing the di-hadron fragmentation formalism, we extend the previous factorization of nearside energy-energy correlators (EEC) in the collinear limit and derive an all order resummation in the Fourier transform $b_T$-space. A perfect matching is obtained when we compare to the fixed-order results. We further demonstrate the resummation effects for the EEC in $e^+e^-$ annihilation and show that they will significantly improve the theoretical predictions at small angles.

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Yuxun Guo, Feng Yuan, Wenbin Zhao. 2025-07-21. Factorization and Resummation for the Nearside Energy-Energy Correlators. https://arxiv.org/abs/2507.15820

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